Linked from

The 19 pages that link to Ordovician, each with the reason it gives.

• SilurianRelated: Its end marks the start of the Silurian.

• TrilobiteRelated: Trilobite fossils help identify and compare Ordovician marine deposits.

• OstracodermRelated: Ostracoderm-like vertebrates appear in the fossil record during this period.

• Jawless fishRelated: Some of the earliest evidence for vertebrates comes from Ordovician fossils.

• BalticaRelated: Baltica’s changing latitude and seas are reconstructed from rocks deposited during this period.

• EmbryophyteRelated: Evidence for early land-plant spores appears in rocks from this period.

• EurypteridRelated: The earliest known eurypterids appear in Ordovician rocks.

• GlomeromycotaRelated: Evidence of ancient plant–fungus associations reaches back to this period.

• KinnekulleRelated: Much of Kinnekulle’s fossil-bearing limestone dates from this period.

• LingulataRelated: Lingulates diversified during this period alongside other marine invertebrates.

• Percé RockRelated: Some of the region’s sedimentary rocks originated during this period.